The leading maker of thermal imaging sensors, Flir, bought a Norwegian drone maker for $134 million, the company announced Wednesday.

Flir acquired Prox Dynamics, which makes the Black Hornet, a tiny nano-drone used by the military and law enforcement for surveillance and reconnaissance. The drone is deployed by throwing it in the air and is small enough to fit in a soldier’s pocket. Despite its compact frame, the Black Hornet carries three cameras.

The palm-sized aircraft is used by the U.S. Marines, the British Army, the Australian Army and Norway’s Armed Forces.

The two companies collaborated before the acquisition; Prox already uses Flir cameras and stabilization technology in its drones. Flir plans to improve on the Black Hornet and add the drone to its line of surveillance products.

Prox isn’t the only drone maker Flir has worked with. The thermal imaging company also joined with DJI, the Chinese manufacturer that controls roughly 70 percent of the consumer drone market, to make a camera for DJI drones that can film in complete darkness. Still, in the U.S. it’s currently illegal to fly a drone at night without a special waiver from the Federal Aviation Administration.

$134 million is a large sum for a company that’s only known for one product, but military contracts can be extremely lucrative. The U.K. Armed Forces paid $28.9 million for Black Hornets and another drone from Lockheed Martin in 2015, and AAI, an aviation defense manufacturing firm, was just awarded a $206 million U.S. Army contract to work on the Shadow drone.

President-elect Donald Trump wants to resume law enforcement access to military equipment, so Flir acquired Black Hornet at an opportune time, when its client base in the U.S. may soon swell.

Watch a video from the BBC explaining how British Forces used the Black Hornet in Afghanistan.

This week, researchers revealed that a strain of malware hit at least 1.3 million Android phones, stealing user data as part of a scheme to boost ad revenue. Called “Gooligan,” it got into those devices the way so many of these large-scale Android attacks do: through an app. Specifically, an app that people downloaded outside the comfortable confines of the Google Play Store.

For criminals, the malicious Android app business is booming. It’s easy for a hacker to dress software up to look novel, benign, or like the dopplegänger of a mainstream product, and then plant it in third-party app stores for careless browsers to find. Once downloaded, these apps may even seem normal (if a little janky) but they can spread ransomware or types of malware that exploit system vulnerabilities to steal data or take over a whole device. Don’t want this drama on your phone? The key to protecting yourself is staying away from sketchy app stores, and only downloading software from Google Play.

SYDNEY (Reuters) - Former U.S. astronaut Buzz Aldrin, the second man to walk on the moon, posted photos on Saturday of his recovery in a New Zealand hospital after he was evacuated from the South Pole due to illness.

Aldrin, 86, who was visiting the pole as part of a tourist group, was flown to Christchurch, New Zealand, early on Friday local time when his condition deteriorated.

Eighteen months ago, Recode spotted an Amazon patent that laid out the company’s vision for a new type of retail store with no lines and no cashiers. Today, Amazon confirmed they are working on such a project.

Called Amazon Go, the store will allow Amazon customers to shop for grocery staples, prepared meals and sandwiches, and then walk right out without stopping to pay at a cashier or kiosk. Customers need only to scan their phone using the new Amazon Go app on the way into the store, and their Amazon account will be charged for items taken.

Sources previously told Recode that such a secret project was being run by Steve Kessel, a longtime Amazonian who once led the Amazon Kindle launch and who was close with CEO Jeff Bezos. The team working on Go has been experimenting with these ideas for as long as four years.